The rulebook says that dogs must be able to see each bird in the air and as it falls. I've had judges tell me there's nothing that says dogs must be able to see birds to the ground. Still, by rule, if the bird must be able to be seen in the air then wouldn't logic dictate that "in the air" and "as it falls" be different situations? If not, then why the two descriptions? To me, it means the bird must be able to be seen if not to the ground, at least to the point when it comes into contact with visible cover. How do you folks interpret it because I've seen judges set up marks with birds landing behind impenetrable thickets and over hills?